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【判断题】
设 是模m的剩余类,k,l是整数,则 的充要条件是m整除k-l, 。A.
正确
B.
错误
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举一反三
【单选题】如图为某截流式合流制排水体系,其中1-2段污水设计流量为50L/s,雨水流量为400L/s,3-4段污水设计流量为40L/s,雨水流量为300L/s,截流倍数n0=3,则管段2-4的设计流量( )L/s。
A.
450
B.
200
C.
360
D.
240
【简答题】新生儿日龄3天,足月顺产,生后第2天出现黄疸,渐加重伴不吃、不哭、不动,查体:重度黄染,精神萎靡,心肺检查无明显异常,肝肋下2.5cm,脾肋下1cm,脐部少许脓性分泌物。
【多选题】Which of the following statements about vulnerable subjects are correct?
A.
Individuals whose willingness to volunteer in a clinical trial may be unduly influenced by the expectation, whether justified or not, of benefits associated with participation, or of a retaliatory response from senior members of a hierarchy in case of refusal to participate.
B.
Examples are members of a group with a hierarchical structure, such as medical, pharmacy, dental, and nursing students, subordinate hospital and laboratory personnel, employees of the pharmaceutical industry, members of the armed forces, and persons kept in detention.
C.
Other vulnerable subjects include patients with incurable diseases, persons in nursing homes, unemployed or impoverished persons, patients in emergency situations, ethnic minority groups, homeless persons.
D.
Other vulnerable subjects include nomads, refugees, minors, and those incapable of giving consent.
【单选题】Which of the following is not an example of a metathesis reaction ?
A.
HNO 3 (aq) + KOH (aq) → H 2 O (aq) + KNO 3 (aq)
B.
2Cr(NO 3 ) 3 (aq) + 3(NH 4 ) 2 CO 3 (aq) → Cr 2 (CO 3 ) 3 (s) + 6NH 4 NO 3 (aq)
C.
2HCl (aq) + Na 2 S (s) → NaCl (aq) + H 2 S (g)
D.
Mg (s) + 2HNO 3 (aq) → H 2 (g) + Mg(NO 3 ) 2 (aq)
E.
Both (C) and (D) are not examples of metathesis reactions
【单选题】2015年10月5日,瑞典卡罗琳医学院在斯德哥尔摩宣布,中国女科学家和一名日本科学家及一名爱尔兰科学家分享2015年诺贝尔生理学或医学奖,以表彰他们在疟疾治疗研究中取得的成就。( )
A.
张弥曼
B.
李方华
C.
任咏华
D.
屠呦呦
【简答题】It is important to know how they feel ______each other. 2. This area obviously has a lot _ common with other inner-city areas. 3. It seems that the patient will not live ________ the night. 4. She wen...
【简答题】新生儿日龄3天,足月顺产,生后第2天出现黄疸,渐加重伴不吃、不哭、不动,查体:重度黄染,精神萎靡,心肺检查无明显异常,肝肋下2.5cm,脾肋下1cm,脐部少许脓性分泌物。
【单选题】2015年10月5日,瑞典卡罗琳医学院宣布将诺贝尔____授予屠呦呦以及另外两名科学家,以表彰他们在寄生虫疾病治疗研究方面取得的成就。
A.
化学奖
B.
医药学奖
C.
生物学奖
D.
生理学或医学奖
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